Home / 90,800.58-136,201.53-31,636.05

Finding the Fourth Proportional to 90,800.58, 136,201.53 and 31,636.05

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Solution

The fourth proportional to 90,800.58, 136,201.53 and 31,636.05 is: 47,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,800.58 : 136,201.53 = 31,636.05 : x
  2. Step 2: Convert to fraction form
    90,800.58/136,201.53 = 31,636.05/x
  3. Step 3: Cross multiply
    90,800.58x = 136,201.53 × 31,636.05
  4. Step 4: Simplify right side
    90,800.58x = 4,308,878,413.16
  5. Step 5: Solve for x
    x = 4,308,878,413.16/90,800.58
  6. Step 6: Final answer
    x = 47,454.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.